iPadOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, WiFi), released on 2017-11-09T18:08:41Z. The update package is 41.64 MB. This is a delta (partial) update that requires 11.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 38e1156067585d5bffb7d54f34233f46dc0209fa.zip.